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A general method for calculating or constructing lower central factors of groups is presented. {\it Relative basic commutators} are defined.

Group Theory · Mathematics 2009-10-06 Ted Hurley

We investigate correlation functions in a periodic box-ball system. For the two point functions of short distance, we give explicit formulae obtained by combinatorial methods. We give expressions for general N-point functions in terms of…

Exactly Solvable and Integrable Systems · Physics 2015-05-14 Jun Mada , Tetsuji Tokihiro

In this short note we introduce a new metric on certain finite groups. It leads to a class of groups for which the element orders satisfy an interesting inequality. This extends the class CP_2 studied in our previous paper [16].

Group Theory · Mathematics 2015-06-30 Marius Tărnăuceanu

The Cholesky decomposition plays an important role in finding the inverse of the correlation matrices. As it is a fast and numerically stable for linear system solving, inversion, and factorization compared to singular valued decomposition…

Commutative Algebra · Mathematics 2017-03-20 Vanita Pawar , Krishna Naik Karamtot

We develop the systematics for applying operators on Minkowski correlation functions to get the inflationary correlation functions. Simple structures and recursion relations are known for Minkowski correlation functions. Using the operator…

High Energy Physics - Theory · Physics 2019-04-10 Shek Kit Chu , Yi Wang , Siyi Zhou

A new recursion formula is presented for the correlation functions of the integrable spin 1/2 XXX chain with inhomogeneity. It relates the correlators involving n consecutive lattice sites to those with n-1 and n-2 sites. In a series of…

High Energy Physics - Theory · Physics 2007-05-23 H. Boos , M. Jimbo , T. Miwa , F. Smirnov , Y. Takeyama

The purpose of this note is to give a brief overview on zeta functions of curve singularities and to provide some evidences on how these and global zeta functions associated to singular algebraic curves over perfect fields relate to each…

Algebraic Geometry · Mathematics 2017-03-03 Julio José Moyano-Fernández

An algorithm is presented to compute Zolotarev rational functions, that is, rational functions $r_n^*$ of a given degree that are as small as possible on one set $E\subseteq\complex\cup\{\infty\}$ relative to their size on another set…

Numerical Analysis · Mathematics 2025-04-03 Lloyd N. Trefethen , Heather D. Wilber

This note provides formula for determinant and inverse of r-circulant matrices with general sequences of third order. In other words, the study combines many papers in the literature.

Combinatorics · Mathematics 2016-09-27 Emrullah Kirklar , Fatih Yilmaz

The article attempts to find an algebraic formula describing the correlation coefficients between random variables and the principal components representing them. As a result of the analysis, starting from selected statistics relating to…

Machine Learning · Computer Science 2023-10-11 Zenon Gniazdowski

This short note contains some definitions and formulas about the power of an observable in statistically separating different classes of events.

Data Analysis, Statistics and Probability · Physics 2012-05-15 Giovanni Punzi

In this note, we study the arithmetic nature of values of modular functions, meromorphic modular forms and meromorphic quasi-modular forms with respect to arbitrary congruence subgroups, that have algebraic Fourier coefficients. This…

Number Theory · Mathematics 2024-08-02 Tapas Bhowmik , Siddhi Pathak

We use the quantum group approach for the investigation of correlation functions of integrable vertex models and spin chains. For the inhomogeneous reduced density matrix in case of an arbitrary simple Lie algebra we find functional…

Mathematical Physics · Physics 2021-02-26 A. Klümper , Kh. S. Nirov , A. V. Razumov

The purpose of this short communication is to make some observations on the connections between various existing formulas of counting the number of sublattices of a fixed index in an $n$-dimensional lattice and their connection with the…

Combinatorics · Mathematics 2007-05-23 Yi Ming Zou

In this note, we prove a quantization formula for singular reductions. The main result is obtained as a simple application of an extended quantization formula proved in [TZ2].

dg-ga · Mathematics 2008-02-03 Youliang Tian , Weiping Zhang

In this short note we give a characterization of ZM-groups that uses the functions defined and studied in [3,4]. This leads to a proof of Conjecture 6 in [4].

Group Theory · Mathematics 2017-04-12 Marius Tărnăuceanu

We explore the use of correlation with simple functions to get lower bounds for arithmetic quantities. In particular, we apply this idea to the power moments of the error term when counting visible lattice points in large spheres.

Number Theory · Mathematics 2023-05-15 Fernando Chamizo

In this short note, we present certain generalized versions of the commutator formulas of some natural operators on manifolds, and give some applications.

Differential Geometry · Mathematics 2011-04-08 Kefeng Liu , Sheng Rao

These notes are dedicated to whom may be interested in algorithms, Markov chain, coupling, and graph theory etc. I present some preliminaries on coupling and explanations of the important formulas or phrases, which may be helpful for us to…

Mathematical Physics · Physics 2008-12-12 Jinshan Zhang

The analysis of solutions to algebraic equations is further simplified. A couple of functions and their analytic continuation or root findings are required.

General Physics · Physics 2007-05-23 Gordon Chalmers